Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
CA 02572068 2006-12-22
SUPPORT DEVICE
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
The present invention relates to lighting fixtures.
2. DESCRIPTION OF THE RELATED ART
Light fixtures are commonly suspended from ceiling locations. It is often
awkward to adjust the position of
such light fixtures.
It would be desirable to provide a novel approach to suspending a light
fixture.
SUMMARY OF THE INVENTION
In one aspects, there is provided a support device for supporting a light
fixture, comprising an anchor
portion for anchoring the light fixture to a ceiling location, a wing
arrangement coupled to the anchor
portion, the wing arrangement including a central base portion and a pair of
wing portions extending
outwardly therefrom, each wing portion including a body having a distal edge
region and a proximal flange
portion joined to the central base portion, a first passage in each body and a
second passage in each
proximal flange, the first and second passages to form a path to receive one
or more cable members to be
suspended therefrom to support a light fixture thereon. While one or more
cable members are described
below, other elongate flexible members may also be used, such as ropes, cords,
threads, plastic extrusions
and the like.
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In an alternative embodiment, the anchor portion includes an anchor fastener
to extend downwardly from
the ceiling location, the central base portion including a central third
passage to receive the anchor fastener
therethrough, the wing portions having opposite longitudinal edge regions,
each of the second passages
being open to a corresponding longitudinal edge region.
In an alternative embodiment, the cable path is arranged to extend around the
central third passage.
An alternative embodiment further comprises a cover plate mounted to the wing
arrangement, the cover
plate having a pair of fourth passages, each to be aligned with a
corresponding first passage.
In an alternative embodiment, each distal edge region includes a remote first
flange portion, the cover plate
having a peripheral second flange portion to be positioned adjacent the first
flange portion.
In an alternative embodiment, each body has an opening adjacent the first
flange portion.
In an alternative embodiment, the cover plate includes a central fifth passage
to receive the anchor fastener.
In an alternative embodiment, the anchor member includes a suspension bracket
for use on a T-shaped
runner.
An alternative embodiment further comprises one or more cable members being to
extend along the path
defined by the two first passages and the two second passages from one wing
portion to another
In an alternative embodiment, the cable has a first cable end region for
anchoring to the light fixture and a
second cable end region for removable attachment to the light fixture.
In an alternative embodiment, the second cable end region is removably
attached to a releasable cable
coupling unit.
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In an alternative embodiment, the cover plate includes a sixth passage and a
conduit portion extending
through the sixth passage.
In another alternative aspect, there is provided a light fixture installation,
comprising a support device and a
light fixture, the support device including an anchor portion for anchoring
the light fixture to a ceiling
location, a wing arrangement coupled to the anchor portion, the wing
arrangement including a central base
portion and a pair of wing portions extending outwardly therefrom, each wing
portion including a body
having a distal edge region and a proximal flange portion joined to the
central base portion, a first passage
in each body and a second passage in each proximal flange portion, the first
and second passages forming a
cable path, one or more cables extending along the cable path, the one or more
cables having free end
regions coupled to the light fixture for suspending the light fixture.
In another alternative aspect, there is provided a method of installing a
light fixture, comprising:
- providing a support device with an anchor portion for anchoring the light
fixture to a ceiling
location;
- coupling a wing arrangement to the anchor portion, the wing arrangement
including a central
base portion and a pair of wing portions extending outwardly therefrom, each
wing portion
including a body having a distal edge region and a proximal flange portion
joined to the central
base portion, a first passage in each body and a second passage in each
proximal flange portion;
- forming a cable path extending through the first and second passages;
- feeding one or more cables along the cable path, so that the one or more
cables having free end
regions hanging below the support device;
- coupling the free end regions to the light fixture for suspending the light
fixture;
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- adjusting the orientation of the light fixture by adjusting relative
positions of the free end
regions.
In yet another alternative aspect there is provided a method of installing a
light fixture, comprising:
- a step for providing a support device with an anchor portion for anchoring
the light fixture to a
ceiling location;
- a step for providing a wing arrangement coupled to the anchor portion, the
wing arrangement
including a central base portion and a pair of wing portions extending
outwardly therefrom, each
wing portion including a body having a distal edge region and a proximal
flange portion joined to
the central base portion, a first passage in each body and a second passage in
each proximal flange
portion;
- a step for forming a cable path extending through the first and second
passages;
- a step for feeding one or more cables along the cable path, so that the one
or more cables having
free end regions hanging below the support device;
- a step for coupling the free end regions to the light fixture for suspending
the light fixture; and
- a step for adjusting the orientation of the light fixture by adjusting
relative positions of the free
end regions.
In still another alternative aspect, there is provided a support device for
supporting a light fixture,
comprising anchor means for anchoring the light fixture to a ceiling location,
wing means coupled to the
anchor means, the wing means including a central base means and a pair of wing
portions extending
outwardly therefrom, each wing portion including a body having a distal edge
region and a proximal flange
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portion joined to the central base portion, a first passage in each body and a
second passage in each
proximal flange portion, the first and second passages to form a path to
receive one or more suspension
means to be suspended therefrom to support a light fixture thereon.
An alternative embodiment provides a pair of cable portions, each being
arranged to extend between the
light fixture and the wing arrangement.
In an alternative embodiment, each cable portion is removably anchored at the
light fixture and the wing
arrangement.
BRIEF DESCRIPTION OF THE DRAWINGS
Several preferred embodiments of the present invention will now be described,
by way of example only,
with reference to the appended drawings in which:
Figure 1 is fragmentary perspective view of a light fixture installation;
Figure 2 is a fragmentary perspective view of a portion of the installation of
figure 1;
Figure 3 is a sectional view taken on line 3-3 of figure 1;
Figure 4 is an operational sectional view according to figure 3; and
Figure 5 is another fragmentary perspective view of the installation of figure
1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
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Referring to the figures, there is provided a support device 10 for supporting
a light fixture, a part of which
is shown at 12. The support device 10 has an anchor portion 14 for anchoring
the light fixture 12 to a
ceiling location 16. In this case, the ceiling location 16 is a T-bar section
which is part of a suspended
ceiling structure. However, other ceiling structures may also be used in other
examples, such as those
which utilize junction boxes and the like. A wing arrangement 18 is coupled to
the anchor portion 14. In
this case, the wing arrangement 18 includes a central base portion 20 and a
pair of wing portions 22, 24
extend outwardly therefrom.
Each wing portion 22, 24 includes a body 22a, 24a having a distal edge region
22b, 24b and a proximal
flange portion 22c, 24c joined to the central base portion 20. A first passage
22d, 24d is provided in each
body and a second passage 22e, 24e is provided in each proximal flange portion
22c, 24c. The first and
second passages 22d, 24d, 22e, 24e form a path to receive one or more cable
members (in this case a single
cable member 30) to be suspended from the support device 10 to support the
light fixture 12 thereon.
While one or more cable members are described below, other elongate flexible
members may also be used,
such as ropes, cords, threads, plastic extrusions and the like. For example, a
pair of separate cables may be
provided, each to pass through and be held in a corresponding first passage
22d, 24d without requiring the
second passages 22e, 24e.
The anchor portion 14 includes an anchor fastener 14a to extend downwardly
from the ceiling location 16.
In this example, the central base portion 20 includes a central third passage
20a (figure 3) to receive the
anchor fastener 14a therethrough. The central base portion 20 is thus secured
to the anchor portion 14 by
way of threaded fastener 26.
As best seen in figure 5, the wing portions 22, 24 have common opposite
longitudinal edge regions 32, 34.
Each of the second passages 22e, 24e is open to a corresponding longitudinal
edge region, each to form an
open notch. However, the second passages 22e, 24e may, if desired, be formed
as holes rather than as
notches, if desired, that is in the same way as the first passages 22d, 24d.
Alternatively, the wing portions
22, 24 may be formed differently in the region of the proximal flange portion
to allow for the passage of the
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cable therethrough while not necessarily forming a notch or an opening. For
instance, each proximal flange
portion may be shaped to lie adjacent the path and be provided with a clamp,
brace or guide portion to
guide and/or confine the cable to the path.
Thus, it can be seen that the cable path is arranged to extend around the
central third passage 20a (figure 3)
and thus the anchor fastener 14a.
Referring to figure 2, a cover plate 36 is provided for mounting to the wing
arrangement 18. The cover
plate 36 has a pair of fourth passages 36a, 36b, each of which is aligned with
a corresponding first passage
22d,24d.
As best seen in figure 5, it can be seen that each distal edge region 22b, 24b
of each body 22a, 24a includes
a remote first flange portion 22f, 24f and the cover plate 36 has a peripheral
second flange portion 36c to be
positioned adjacent the first flange portions.
Each body 22a, 24a also has an opening 22g, 24g adjacent the first flange
portion.
Referring to figure 2, the cover plate 36 also has a central fifth passage 36d
to receive the anchor fastener
14a. In this case, a fastener in the form of a threaded or non-threaded cap
member 38 is engageable with
the anchor fastener 14a to secure the cover plate 36 in position.
A number of different anchor portions 14 may be used in connection with the
support device. In this case,
the anchor portion 14 includes a suspension bracket for use on a T-shaped
runner. Earlier versions of this
suspension bracket are shown in US Patent 6,637,710, granted October 28, 2003,
entitled FIXTURE
SUSPENSION BRACKET ASSEMBLY, the entire subject matter of which is
incorporated herein by
reference.
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One or more cable members, in this case one cable member 30, extends along the
path defined by the first
and second passages 22d, 24d, 22e, 24e from one wing portion to another.
Referring to figure 1, the cable
member 30 has a first cable end region 30a for anchoring to a light fixture 12
and a second cable end region
30b for removable attachment to the light fixture 12. The second cable end
region 30b is, in this example,
removably and/or releasably attached to a releasable cable coupling unit 40,
such as that available under the
trade name GRIPLOCK.
It can be seen that the cover plate 36 includes a sixth passage 36e to receive
a conduit portion 42, for
housing or channeling electrical and/or communication cables, shown
schematically at 44, between the
light fixture 12 and a central power supply and/or communications hub, not
shown.
Thus, the support device 10 provides a method of installing a light fixture 12
that allows for convenient
adjustments of the light fixture 12. First, the support device 10 is provided
with the anchor portion 14
which is arranged for anchoring to a ceiling location. The wing arrangement 18
may then be coupled to the
anchor portion 14. This is done by orienting the wing arrangement 18 so that
the anchor fastener 14a is
extended through the central third passage 20a and by securing the wing
arrangement in place by way of
fastener 26.
The cable member 30 is then fed through the first and second passages and
around the anchor fastener 14a
along the path and the first and second cable end regions 30a, 30b are left to
hang below the wing
arrangement 18. The first and second cable end regions are then fed through
the corresponding fourth
passages 36a and 36b in the cover plate. The cover plate 36 is then placed
with the anchor fastener 14
extending through the central fifth passage 36d. The cover plate is then held
in position with the cap
member 38 threadably or frictionally engaged with the anchor fastener 14a. Of
course, the cover plate 36
may be secured in place using other fastening products and techniques, such as
by adhesives, hook and loop
fasteners and the like. This brings the fourth passages 36a, 36b into line
with the corresponding first
passages 22d, 24d and the second peripheral flange 36c into proximity with the
remote first flange
members 22f, 24f.
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The first cable end region 30a is then fixed to the light fixture 12 and the
second cable end region 30b is
provided with the releasable cable coupling unit 40. This allows the second
cable end region 30b to be
adjustable in the releasable cable coupling unit 40, so that the effective
length of the cable member 38 may
be lengthened or shortened by corresponding adjustments of the relative
position of the cable member 38 in
the releasable cable coupling unit 40. The releasable cable coupling unit 40
may then be attached to the
light fixture 12 so that the latter is now suspended from the wing arrangement
18 as shown in figure 1 and
4. A user may then adjust the orientation of the light fixture 12 by applying
forces to the cable member 30
so that the cable member 30 can be shifted in its position in the wing
arrangement 18. For instance, if the
user determines that the right hand side of the light fixture 12 is below the
left hand side so that the light
fixture 12 is not horizontal, the user may then apply a downward force on the
left hand side of the light
fixture 12, in effect to lengthen the effective cable member between the wing
arrangement 18 and the first
cable end portion 30a and to shorten the effective cable member between the
wing arrangement 18 and the
second cable end portion 30b. By this arrangement, the cable member 38 is able
to slide along the path
and is not pinched or otherwise unduly impeded by the structure of the wing
arrangement 18, the anchor
fastener, nor the various passages through which the cable.
If desired, one or more guide portions, as shown in dashed lines in figure 3
at 46a, 46b and 46c may be
provided to guide the cable around the anchor fastener 14a and threaded
fastener 26. This may be desirable
in some cases to allow the cable to feed along the cable path without engaging
the anchor fastener 14a or
threaded fastener 26. Other guide portions may also be provided as desired
further to define the cable
path. Among other fabrication techniques, the guide portions 46a, 46b and 46c
may, for example, be
formed by first providing three flanges, as shown in dashed lines at 48a, 48b
and 48c in figure 5, in a punch
step or other fabrication step in the central base portion 20, and then by
bending the flanges to extend
downwardly from the central base portion. Alternatively, the guide portions
may be formed on one or more
than one separate article which may then be attached to the central base
portion 20 or in the vicinity
thereof.
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While the cable path is arranged to extend around the central third passage
for the support device 10, there
may be other arrangements in which the wing arrangement is secured to the
anchor portion without need
for the anchor fastener 14a or the central third passage 20a. For example, the
anchor fastener may in fact
be secured to the central base portion to extend through a corresponding
passage in an anchor portion
secured to the ceiling location. An example may be a passage in a T-bar
section, for instance. In this case,
the anchor fastener may not project into a region between the two second
passages, meaning that the path
need not extend around the anchor fastener in this case. In yet another
example, the anchor fastener 14a
may be shorter in length, still allowing the anchor fastener 14a to pass
through the central third passage 20a
in the central base portion 20 and be secured thereto by way of the threaded
fastener 26 without the anchor
fastener or threaded fastener obstructing the region between the two second
passages.
In another alternative example, the cable member 38 may be replaced by a pair
of cable portions, each of
which is arranged to extend between the light fixture and the wing
arrangement. Furthermore, each cable
portion may be independently removably anchored at the light fixture (as for
example by way of a
releasable coupling unit as shown at 40 in figure 1) and at the wing
arrangement, by way of an anchor
portion, such as that shown schematically in dashed lines at 41 in figure 3.
Thus, in this example,
adjustment of the light fixture may be achieved by adjusting the position of
the cable portion in the
releasable coupling unit or at the anchor portion, if desired.
While the present invention has been described for what are presently
considered the preferred
embodiments, the invention is not so limited. To the contrary, the invention
is intended to cover various
modifications and equivalent arrangements included within the spirit and scope
of the appended claims.
The scope of the following claims is to be accorded the broadest
interpretation so as to encompass all such
modifications and equivalent structures and functions.
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